package schema

import (
	"time"

	"entgo.io/ent"
	"entgo.io/ent/dialect/entsql"
	"entgo.io/ent/schema"
	"entgo.io/ent/schema/field"
	"entgo.io/ent/schema/index"
)

// Attachment 业务附件：图纸 / 照片 / 文档等，按 bizType+bizId 关联业务单据
type Attachment struct {
	ent.Schema
}

func (Attachment) Annotations() []schema.Annotation {
	return []schema.Annotation{entsql.Annotation{Table: "attachment"}}
}

func (Attachment) Fields() []ent.Field {
	return []ent.Field{
		field.Int("id").Positive(),
		field.String("bizType").MaxLen(40).Comment("业务类型 work_order/material/process_flow/inspection"),
		field.String("bizId").MaxLen(64).Comment("业务ID"),
		field.String("fileName").MaxLen(255).Comment("原始文件名"),
		field.String("filePath").MaxLen(255).Comment("上传目录相对路径"),
		field.Int("fileSize").Default(0).Comment("字节数"),
		field.String("uploader").Default("").MaxLen(64).Comment("上传人"),
		field.Time("createdAt").Default(time.Now).Immutable(),
	}
}

func (Attachment) Indexes() []ent.Index {
	return []ent.Index{
		index.Fields("bizType", "bizId"),
		index.Fields("createdAt"),
	}
}